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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2200095Generated: November 1, 2026

Ethyl Acetate → HCID 90020695, compound

https://huagongshe.com/reaction/2200095

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
Reactant4,6-DichloropyrimidineHCID 70943—
ReactantPotassium tert-butoxideHCID 23665647—
ReactantHCID 178507770HCID 178507770—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
ProductHCID 90020695HCID 9002069570.8%

Reaction Conditions

Temperature25 °C

Reaction Steps

Add 5-aminopyridin-2-ol (500 mg, 4.545 mmol), t-BuOK (555 mg, 4.545 mmol) in DMF (20 mL), stir at 25° C. for 30 min. Cool to 0° C., add slowly 4,6-dichloropyrimidine (614 mg, 4.13 mmol). Stir the reaction under N2 for 1 hr. TLC (EtOAc:PE=1:1) shows the reaction is complete. Cool the mixture to 0° C., add water (20 mL), extract with EtOAc (20 mL×2). Combine the organic layers; wash with brine, dry over anhydrous Na2SO4. Filter and concentrate under reduced pressure to give crude product. Purification by chromatography (silica gel, EtOAc:PE=1:1) affords the title compound (650 mg, 70.8%). MS: (M+1): 223.1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09359338B2
Source datasetuspto-grants-2016_06
ORD IDord-4d73a82080ce49a2b261282e0c3d5549
Source noteuspto-grants-2016_06